CN102272518A - Lighting assembly and automotive headlamp arrangement - Google Patents

Lighting assembly and automotive headlamp arrangement Download PDF

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Publication number
CN102272518A
CN102272518A CN2009801537270A CN200980153727A CN102272518A CN 102272518 A CN102272518 A CN 102272518A CN 2009801537270 A CN2009801537270 A CN 2009801537270A CN 200980153727 A CN200980153727 A CN 200980153727A CN 102272518 A CN102272518 A CN 102272518A
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CN
China
Prior art keywords
collimater
light
light fixture
perforate
recess
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Granted
Application number
CN2009801537270A
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Chinese (zh)
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CN102272518B (en
Inventor
J.A.舒格
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Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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Publication of CN102272518A publication Critical patent/CN102272518A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/16—Laser light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

The invention describes a lighting assembly (1) comprising a semiconductor light source (2); a support (3) with a recess (30), within which recess (30) the semiconductor light source (2) is positioned; and a collimator (4, 4') comprising a light entry opening (5, 5'), a light exit opening (6, 6'), and at least one side wall, which collimator (4, 4') is moveable relative to the support (3) within a range of motion (M, M'). The collimator (4, 4') is attached to the support (3) such that the light entry opening (5, 5') of the collimator (4, 4') and the recess (30) are joined in a nested manner so that light emitted by the semiconductor light source (2) within the recess (30) enters the collimator (4, 4') through the light entry opening (5, 5') and exits essentially only through the light exit opening (6, 6') of the collimator (4, 4') for any position of the collimator (4, 4') over its range of motion (M, M'). The lighting assembly (1) further comprises an actuator (8, 8') for moving the collimator (4, 4') over at least part of its range of motion (M, M'). The invention further describes an automotive headlamp arrangement (80) comprising such a lighting assembly (1) and also comprising a reflector element (81) and a secondary optic (82).

Description

Light fixture and car headlamp device
Technical field
The present invention describes light fixture.
Background technology
Because technical development has caused economy but very bright semiconductor light sources, use the lighting unit or the light fixture of semiconductor light sources just becoming more and more welcome.
In the light fixture that uses in automobile is for example used, a kind of special requirement is that the "cut-off"line by the light of light fixture output satisfies some regulation.Moreover this "cut-off"line should be adjusted, thereby for example raises or reduce light beam by light fixture output.The adaptive of light output is also expected in some concrete situation, such as when driving enters bend, makes that the zone in the bend can be shone better, and the result is the raising that promotes secure context.
Such prior art light fixture is known, thereby it is implemented movable beam-defining clipper and is for example changing "cut-off"line on the direction up or down with guiding light output.Yet the shortcoming that these solutions have is that when beam-defining clipper moved, some light " escape " made not all light by light emitted can enter beam-defining clipper, causes the inefficient of these type light fixtures thus.
Therefore, the purpose of this invention is to provide replaceable and light fixture more efficiently.
Summary of the invention
The objective of the invention is to realize by light fixture according to claim 1.
This light fixture comprises semiconductor light sources; Support with recess, semiconductor light sources are positioned in this recess; And collimater, it comprises light entrance perforate, light exit perforate and at least one sidewall, this collimater is movable with respect to support in a range of movement.According to the present invention, collimater is attached to support, make the light entrance perforate of collimater and recess according to the nested mode combination, so that for any position of collimater on its range of movement, enter collimater by its light entrance perforate and only leave basically by the light exit perforate of collimater by the light of the semiconductor light sources in recess emission.Light fixture further comprises actuator, and it is used for mobile collimater at least a portion of the range of movement of collimater.
The semiconductor light sources of using in this light fixture can be light emitting diode (LED), organic LED (OLED), laser diode or any other suitable semiconductor light sources.Technical staff as the manufacture method of being familiar with this semiconductor light sources knows, and this semiconductor light sources generally is attached to substrate.Be used to encourage be connected usually and be integrated in the substrate with the necessary electricity of driving light source.The quality on the surface of this semiconductor light sources or integrality are vital for its luminescent properties.Thereby must carefully avoid scratch or other damage to light source.The conventional semiconductors lighting device can utilize sealant, dome or glass covering to protect.Yet these guard covers cause and are difficult near light source, can expect near light source in some optics design.Therefore, in order to prevent to damage semiconductor light sources or substrate, these can use such covering to protect, and described covering has the perforate or the opening of the position of coupling semiconductor light sources on substrate.Usually, opening is in shape corresponding to the shape of light source.In light fixture according to the present invention, covering not only is used to protect purpose, and as the support of collimater, as obvious as seen by following descriptions institute.Moreover support also may be implemented as and surrounds in recess and keep semiconductor light sources and substrate thereof.Therefore, term " covering " and " support " can use hereinafter interchangeably, and do not limit the present invention in any way.
Light fixture described herein can be the part of such lighting unit, and described lighting unit can be required to produce the light beam with some " shape " or " optical mode ".So the purpose of collimater is the light of guiding by semiconductor light sources emission, thereby the net shape of the light beam that produced by this lighting unit is played contribution.The shape of collimater itself influences the shape of output beam on some degree.Reason for this reason, collimater is also referred to as " beam-defining clipper " sometimes.Therefore these terms can use hereinafter interchangeably.
Obvious advantage according to light fixture of the present invention is, because collimater is connected according to nested mode with covering, promptly one is assemblied in another inside at least in part, and light can't " let out " under collimater, makes in this junction not lose light basically.In this way, can realize high efficiency especially semiconductor light sources.This is a particular importance for following application: for example in automobile is used because security reason, the efficient of light source should be high as far as possible.Moreover, by avoiding light " leakage " under collimater, can realize being shaped more accurately of whole optical mode.
Surface area such as the light-emitting area of the semiconductor light sources of led chip can have the yardstick of about 0.5mmx0.5mm to 2.0mmx2.0mm, and can be grouped into array.1x2 chip or even the array of 4x32 chip have been shown.The array of 1x4 chip or 1x5 chip is very general in automobile is used.Generally speaking, the spacing between the chip is very little separately, thereby allows this array to be regarded as single rectangular shaped light source.Can use led chip, make these can easily be arranged to whole rectangular shape, and the gap between the chip is very little or very close to each other separately with rectangular area.
The semiconductor light sources that generates monochromatic output light color can apply with fluorescence or phosphor material, thereby produces the light of desired color, for example white light.This coating can be applied to be arranged in as mentioned above the many chips in the array.
Whole light fixture even use the assembly of the array of led chip, can advantageously have little size.Therefore, be, because the parts small scale, can use part light and motion easily to realize, make the power that their motions only need be little such as the motion parts of actuator and collimater according to another advantage of light fixture of the present invention.For example, the little electromechanical motor such as micro motor can be enough to move collimater with respect to covering on the range of movement of collimater.
Dependent claims and subsequent descriptions disclose particularly advantageous embodiment of the present invention and feature.
As mentioned above, collimater is movable at a range of movement, and collimater is moved by actuator on its range of movement.Can consider the motion of any adequate types, for example lateral movement of collimater on the covering of light fixture.Yet in the special preferred embodiment of the present invention, collimater is movable or tilts around rotating shaft, makes collimater not leave its integral position basically with respect to the covering of light fixture.In this way, semiconductor light sources basically all light output can be conducted through collimater and not have any light and leak, and with the location independent of collimater in its range of movement.
Angular range from the common covering wide of emission of led light source.In a preferred embodiment of the invention, collimater will be by the source guiding light emitted to narrower angular range.Owing to the entire area of semiconductor light sources is very little usually, but the brightness of this semiconductor light sources is very high, and therefore expectation is expanded and is shaped to a certain extent by the light of light emitted usually.Therefore, in the special preferred embodiment of the present invention, the area of the light entrance perforate of collimater is less than the area of the light exit perforate of collimater.By this, the relative position of light entrance perforate and light exit perforate is for making output light be directed into specific direction.
The yardstick of semiconductor light sources is usually by the factor decision such as the focal length of the manufacturability of light source and/or optical system.Therefore, in an embodiment of the present invention, the area of the light entrance perforate of collimater is preferably less than 120mm 2(for example 4mmx30mm) is more preferably less than 12mm 2(for example 2mmx6mm), and most preferably less than 6.75mm 2(for example 1.5mmx4.5mm).Because its little size, the collimater of these yardsticks can be called " little collimater ".
Point out that as mentioned the efficient of semiconductor light sources is kept in expectation as far as possible certainly.Therefore, in other preferred embodiment of the present invention, the surface, inside of the recess in the covering of light fixture is a high reflection, and this surface, inside is the surface between the light entrance perforate of semiconductor light sources and collimater.This high reflecting material can for example be the plastic material such as Stanyl (being made by DSM), perhaps uses the material of the lacquer coating of aluminium, silver or titanium dioxide " filling ".Yet, because only leave opening basically and leave by its light exit perforate by the light entrance perforate of collimater by the light of light emitted, the inwall of recess be high reflection will be enough, and the remainder of covering to need not be high reflection.This can allow to realize this covering for example more economically.For the efficient of further optimization according to light fixture of the present invention, one or more inner surperficial preferably high reflection of collimater.Equally, collimater can utilize high reflecting material to make, and perhaps (a plurality of) inner surface can utilize suitable high reflecting material to handle or apply.
The geometry of the geometry of recess or opening and collimater or beam-defining clipper is tight association, because these are to connect according to nested mode, makes one at least in part against another inside.In other words, the shape of collimater is determined the shape of recess, and perhaps vice versa.
Therefore, in one embodiment of the invention, recess is by forming on the surface that is positioned at covering and from the surperficial outward extending fence of covering or frame or flange.According to special preferred embodiment of the present invention, collimater comprises the skirtboard around its light entrance perforate, and the respective wall of recess is configured as holds skirtboard, makes being connected them collimater was kept between moving period of collimater and recess.For example, if recess is to be formed by the fence that comprises the frame that is positioned at parameatal lifting, thereby the frame of this lifting can be implemented as the skirtboard complementation that inwardly leans on along an edge at least with collimater, and this skirtboard outwards leans on along this edge.These forming elements are preferably shaped to the smooth motion that allows collimater.They can have and contact with each other, and the elastic performance of material can be used to guarantee that the gap between collimater and the recess is insignificant.
Be clear that the range of movement of collimater is by how much decisions of the relevant portion of recess and collimater on big degree.Accordingly, in a preferred embodiment, the shape of the shape on a surface of collimater skirtboard and the respective surfaces of recess comprises curved shape, make these surfaces one of them have convex form and another has concave shape.These surperficial radius of curvature are preferably between 0.4mm and 4mm, more preferably between 0.5mm and 2mm, and most preferably in the scope of 0.7mm and 1.5mm.Depend on horizontally rotating of adjusting range that "cut-off"line is desired or beam mode, the range of movement of the collimater in this light fixture is preferably within-45 ° and+45 °, more preferably between-30 ° and+30 °, and most preferably between-15 ° and+15 ° (with respect to what measure perpendicular to the imaginary axis of the light-emitting area of semiconductor light sources).This so determine the skirtboard of collimater of tiltable type as mentioned above and the selection of the angle yardstick of inwall.
Can expect the many different physics realization mode of collimater and recess.In a preferred implementation, the cross section of the light entrance perforate of recess and collimater is essentially rectangle, and the collimater skirtboard is configured as along an edge of its light entrance perforate and stretches out.For example, for the substantial rectangular semiconductor light sources, most realistic will be: the skirtboard of collimater is realized along a long edge of collimater light entrance perforate, and the respective inner walls of recess correspondingly is shaped.In replaceable implementation, recess is to be formed by fence or frame that protrusion is higher than the covering outer surface, make recess seal the bottom and the skirtboard of collimater according to nested mode, and along with an edge shaping of the skirtboard complementation of collimater, make collimater to be tilted.
Preferably, the geometry of collimater is for making collimater comprise an edge at its light exit tapping, the definition of described edge leave collimater light mainly be the "cut-off"line of level.In above-mentioned " rectangle " embodiment, for example, "cut-off"line can be defined by the long edge of light exit perforate, and other collimater shape is related with different "cut-off"lines significantly.
For example, in alternative embodiment, collimater can be the truncated cone-shaped shape with circular light inlet drilling and ellipse-shaped light outlet perforate, and it is configured as a point that for example makes on the circumference of light exit perforate and is substantially perpendicular to covering.The lower limb of the light entrance perforate of this collimater can outwards open on the whole circumference of collimater.In this implementation, the respective circular opening in the covering can be implemented as and makes the inwall of recess can be in respective angles to hold the skirtboard that opens of collimater.Replacedly, can be shaped as the skirtboard that holds collimater, make on the outer surface of lower limb against covering of collimater around the lip-deep flange of covering or the frame of circular open.By this, according to the similar mode of aforesaid " rectangle " embodiment, the skirtboard of collimater can be accommodated in flange or the frame according to nested mode, perhaps vice versa.
The type that is used for the actuator of mobile collimater on the range of movement of collimater will depend on the geometry and the yardstick of the collimater of actual realization to a great extent.For example, actuator can be " nose portion " thereby or lever act on the far away of collimater or " on " edge, promptly along the edge of its light exit perforate, make this tilt forward or backward.This lever can be implemented as forward and motion (all being electromechanically under two kinds of situations) backward, and perhaps it can comprise spring element, make actuator only need in one direction by electromechanically, and spring action makes actuator turn back to its home position.Replacedly, actuator can be toothed, makes the tooth of actuator be connected to for example corresponding tooth or the depression on the outer surface of collimater, and when being moved with convenient actuator, tooth meshes according to the gear mode, and the corresponding sports of collimater is reached.
Actuator also can physically be connected to collimater.Therefore, in a preferred embodiment of the invention, actuator comprises a bar, and this bar is connected to the edge of the light entrance perforate relative with the skirtboard of collimater, thereby described bar is rotatable around this inclination collimater around rotating shaft.Rotating shaft coincide with the edge of the light entrance perforate relative with the skirtboard of collimater basically.In this embodiment, the rotation of actuator directly causes the corresponding banking motion of collimater.
Actuator can be related with the single collimater of light fixture, perhaps can be implemented as a plurality of collimaters of the adjacent light fixture of control.For example, in the routine of light source was arranged, the above-mentioned type actuator of single rod-shape can be connected to the collimater in the delegation, made the rotation of actuator cause the corresponding inclination of each collimater that this actuator is connected to.In a similar way, toothed actuator can be implemented as and the engagement of some adjacent collimator, makes the motion of this actuator cause the corresponding sports of those collimaters, for example rotation.Certainly, the example that the implementation of actuator is not limited to provide herein, and can adopt any suitable form or yardstick.
Car headlamp device according to the present invention comprises one or more light fixtures according to any one the foregoing description, thereby and comprises that reflector element and secondary optics obtain the expectation optical mode with the light beam that acts on the light exit perforate of leaving collimater or beam-defining clipper.For example, car headlamp embodiment comprises that layout becomes to produce the array of the light fixture of the whole optical mode of expecting.The actuator of each light fixture can be controlled separately, but realize becoming unnecessarily complicated because this can make, and the actuator of light fixture can be by one or more controller shared controls.In further simplifying, the light fixture with controlled actuator can be by making up or being distributed on some groups.So one group of actuator can for example be controlled by the shared electromechanical controller that acts on this group actuator.Further take this step, the collimater of one group of light fixture can be activated by single actuator, for example is connected to the bar at the long edge of delegation's collimater, makes the rotation of bar cause all these collimaters synchronously to tilt.These embodiment allow very accurately to define the "cut-off"line that can be realized by this car headlamp device.
Certainly, front lamp device can comprise having fixedly other light source of collimater, does not for example have contributive those light sources of light beam part of contribution for any adjusting to "cut-off"line.
Above-mentioned light fixture is not limited to use in automobile is used certainly, and can find the use in other is used, such as spotlighting or be used for searchlight etc.May use according to the another kind of light fixture of the present invention can be to be used for advertisement or irradiation purpose in display unit, wherein each pixel is that light fixture by the above-mentioned type provides, thereby and its can the controlled output light that guides each pixel according to noticeable mode.
Other purpose of the present invention and feature will be in conjunction with the drawings and the following detailed description of considering and become clear.Yet will understand the definition that accompanying drawing is designed to only to be used for illustrative purposes rather than is used as limitation of the present invention.
Description of drawings
Fig. 1 a illustrates the plane of the prior art light fixture with support and semiconductor light sources;
Fig. 1 b illustrates the cross section of the beam-defining clipper of the prior art light fixture of Fig. 1 a and proximity illumination assembly;
Fig. 2 a illustrates the cross section according to the light fixture with collimater of first embodiment of the invention;
Fig. 2 b illustrates the cross section of the light fixture of Fig. 2 a, and wherein collimater is in obliquity;
Fig. 3 illustrates the lifting side view according to the light fixture of first embodiment of the invention;
Fig. 4 illustrates the lifting side view of the light fixture of the Fig. 3 with rotating shaft;
Fig. 5 illustrates the more detailed lifting side view of the light fixture of the Fig. 4 with actuator;
Fig. 6 illustrates the lifting view according to the light fixture of second embodiment of the invention and actuator;
Fig. 7 illustrates the light fixture of Fig. 6 and the lifting view of actuator;
Fig. 8 illustrates the cross section that comprises according to the car headlamp device of the array of light fixture of the present invention;
Fig. 9 illustrates the plane of array of light fixture of the car headlamp device of Fig. 8.
In the accompanying drawings, same numbers is represented analogical object all the time.Object in the diagram is not necessarily drawn in proportion.
The specific embodiment
Fig. 1 a and 1b illustrate the top view and the side cross-sectional view of prior art light fixture respectively.In these diagrams, be illustrated in covering 3 or the recess 30 in the support 3 or the many LED 2 in the perforate 30 of protection substrate 12.In side cross-sectional view, schematically show beam-defining clipper 11, utilize the actuator (not shown) for example by tilting to make this beam-defining clipper motion.By making beam-defining clipper 11 move or tilt to the second place (dotted line), can be conditioned by the "cut-off"line of the light of this prior art light fixture output from primary importance (solid line).Most of light leave (indicated as big arrow) by the light exit perforate of beam-defining clipper 11, but mention as mentioned, particularly when beam-defining clipper 11 tilts or moves, some light can be escaped under the edge of the beam-defining clipper 11 of the most close covering 3 or be leaked (by indicated than small arrow), thus the global shape of influence output light and reduce the efficient of prior art light fixture negatively.
Fig. 2 a illustrates the side cross-sectional view according to the light fixture 1 of first embodiment of the invention.Equally, covering 3 or support 3 are attached to one or more LED 2 substrate 12 disposed thereon, make LED 2 be positioned in the perforate 30 or recess 30 in the covering 3.In this embodiment, recess 30 is the otch in the support 3 simply.This side cross-sectional view also illustrates collimater 4, and this collimater is connected to covering 3 according to nested mode, makes that the part 40 of collimater 4 is against in the recess 30 when collimater 4 is not in obliquity.In this way, the light entrance perforate of collimater 4 is taken in by recess 30, the feasible light entrance perforate that enters collimater 4 or beam-defining clipper 4 by the light L that is positioned at LED 2 emissions in the recess 30, thus leave by its light exit perforate fully.In this diagram, can clearly be seen that the skirtboard 40 that is nested in the collimater 4 in the recess 30.This skirtboard 40 is implemented as the additional bottom of collimater 4, and this bottom is shaped so that in its inwall 31 that correspondingly is shaped that is assembled to recess 30.For simplicity, the actuator of mobile collimater is not shown in this diagram or the following diagram.
Fig. 2 b illustrates the light fixture identical with Fig. 2 a.In this case, collimater 4 is shown and is in its obliquity.So diagram is clearly shown that, collimater 4 is tilted the right in this diagram, and the skirtboard 40 of collimater 4 moves upward basically along the inwall 31 of recess 30 by this.Collimater 4 shown in this diagram is along its whole range of motion.Significantly, can make collimater 4 motion make this collimater only in the part of its range of movement, move, for example make only slight inclination of this collimater.Because the obliquity of collimater 4, the general direction of output light L' correspondingly changes.In diagram, can clearly be seen that,, do not exist light entrance perforate around collimater 4 from the light loss under the collimator edge even the special design of collimater 4 is to make when collimater tilts.In this schematic diagram or line frame graph, the main body of collimater is shown does not have any thickness.Significantly, the sidewall of collimater will have a certain thickness, even and when collimater tilted, these sidewalls can be partly against in the recess.For the sake of clarity, not shown in the drawings this point.
Fig. 3 illustrates the detailed lifting side view of light fixture 1 according to an embodiment of the invention.Equally, collimater 4 is shown and is in its obliquity.This diagram is shown more clearly in the shaping inwall 31 of the recess 30 that uses among this embodiment and the skirtboard 40 of collimater 4, and this skirtboard 40 is shaped as the shape complementarity with the inwall 31 of recess 30.From this diagram also as can be seen, greater than light entrance perforate 5, the covering 3(that light fixture 1 is mated in light entrance perforate 5 basically partly illustrates on area in the light exit perforate 6 of collimater 4) area of split shed 30.
Fig. 4 illustrates another lifting side view of the rectangular collimator 4 with skirtboard 40.This diagram also illustrates rotating shaft R, and collimater 4 can be moved on range of movement M or tilt around this rotating shaft among this embodiment.
Fig. 5 illustrates the collimater 4 according to first embodiment of light fixture of the present invention, it has actuator 8 in this case, thereby this actuator is implemented as and makes collimater 4 motion or tilt to change "cut-off"line and/or the photoemissive preferred orientations of the light L that leaves from light exit perforate 6.In this case, actuator 8 is bar 8 simply, and this bar can rotate by unshowned electromechanical assembly in this diagram for example.Bar 8 is attached to or is connected to the edge of the collimater 4 on the opposite side that is positioned at skirtboard 41, makes collimater 4 tilt around rotating shaft R.
Fig. 6 illustrates the replaceable implementation that is used for the collimater 4' that uses at second embodiment according to light fixture of the present invention.In this diagram, collimater 4' is illustrated as truncated cone-shaped 4'.The geometry of collimater 4' is to make that the light entrance perforate 5' cross section of collimater 4' is circular, and light exit perforate 6' cross section is oval.In this example, collimater 4' is implemented as and makes light exit perforate 6' and the horizontal plane that is provided by the support 3 of light fixture 2 at angle, but ellipse-shaped light outlet perforate 6' can be parallel to the plane of the support 3 of light fixture comparably.The light entrance perforate 5' of collimater 4' is provided by skirtboard 40' or flange 40', skirtboard 40' or flange 40' be configured as in the covering 3 with light fixture or on the respective inner or the flange complementation of recess.
Fig. 7 illustrates the implementation of the tapered cone collimator 4' with actuator 8'.Actuator 8' in this situation is toothed bar 8', and the respective recesses engagement in the outer surface of its tooth and collimater 4' makes that collimater 4' is caused around its rotating shaft R' and has rotated respective numbers M' when actuator 8' laterally moves.
Fig. 8 illustrates the implementation of car headlamp device 80 with the cross section, it comprise array with light source 2 according to light fixture 1 of the present invention, support element 81 and secondary optics 82.At illustrated left-hand side, for the sake of clarity amplify lighting device 1 is shown.Be illustrated in the device that has triplex row semiconductor light sources 2 in the support 3 herein, every row has the collimater 4 that can tilt according to the mode of having described.
Fig. 9 illustrates the plane of light fixture 1 of the car headlamp device 8 of Fig. 8, the selection of the layout of light source in its explanation light fixture.Here, for the sake of clarity, use Reference numeral that single semiconductor light sources 2 and collimater 4 only are shown, yet will understand, array shown in the diagram comprises a plurality of this light sources and collimater.Shown in these diagrams in the front lamp device 8, the shape of output beam, i.e. optical mode, the layout that directly is subjected to this array intraoral illumination assembly 1 influences.The actuator 8 of many light fixtures 2 can make the collimater 4 of organizing light fixture 1 among the G synchronously move by controller 83 Electromechanical Control among the group G.Significantly, this car headlamp device 8 can comprise more than such group with more than a controller, and it is controlled to make that every group actuator is independent of the actuator of other (a plurality of) group.
Although the present invention is disclosed with the form of preferred embodiment and modification thereof, will be appreciated that and to carry out many additional adjustment and change to it and do not deviate from scope of the present invention.For example, the motion of collimater with respect to covering described hereinbefore.Each embodiment has illustrated a kind of collimater, and described collimater can be moved, and the remainder of light fixture keeps not moving.Certainly, can adopt such distinct methods, wherein collimater keeps fixing basically, and the other parts of light fixture are caused motion.Moreover, the shape that the cross sectional shape of recess, opening and light entrance/outlet perforate is not limited to describe herein, but can adopt any appropriate shape to be fit to the design of light fixture.
For the sake of clarity, will be appreciated that the application in the whole text in the use of " " or " " do not get rid of a plurality of, and " comprising " do not get rid of other step or element." unit " or " module " can comprise many unit or module, unless otherwise noted.

Claims (15)

1. a light fixture (1), it comprises
Semiconductor light sources (2);
Support (3) with recess (30), semiconductor light sources (2) are positioned in this recess (30);
Collimater (4,4'), it comprises light entrance perforate (5,5'), light exit perforate (6,6') with at least one sidewall, this collimater (4,4') with respect to support (3) at a range of movement (M, M') be movable in, wherein collimater (4,4') be attached to support (3), make collimater (4, light entrance perforate (5 4'), 5') and recess (30) according to the nested mode combination, so that for collimater (4,4') at its range of movement (M, M') any position on, the light of being launched by the semiconductor light sources (2) in the recess (30) passes through light entrance perforate (5,5') enter collimater (4,4') and basically only pass through collimater (4, light exit perforate (6 4'), 6') leave;
And actuator (8,8'), it is used for moving this collimater at least a portion of the range of movement (M, M') of collimater (4,4').
2. according to the light fixture (1) of claim 1, wherein collimater (4,4') is movable around rotating shaft (R, R').
3. according to the light fixture (1) of claim 1 or claim 2, the area of the wherein light entrance perforate of collimater (4,4') (5,5') is less than the area of the light exit perforate of collimater (4,4') (6,6').
4. according to light fixture any in the aforementioned claim (1), the area of the wherein light entrance perforate of collimater (4 4') (5,5') is preferably less than 120mm 2, more preferably less than 12mm 2, and most preferably less than 6.75mm 2
5. according to light fixture any in the aforementioned claim (1), the surface, inside (31) of its center dant (30) is a high reflection.
6. according to light fixture any in the aforementioned claim (1), its center dant (30) comprises the perforate in the support (3).
7. according to light fixture any in the aforementioned claim (1), its center dant (30) comprises on the surface that is positioned at support (3) and from the surperficial outward extending fence of support (3).
8. according to light fixture any in the aforementioned claim (1), wherein collimater (4,4') comprises skirtboard around light entrance perforate (5,5') (40,40'), and the corresponding wall of recess (30) (31,31') is configured as and holds skirtboard (40,40'), make in collimater (4,4') at its range of movement (M, M') between last moving period, collimater (4,4') with kept nested connection of recess (30).
9. light fixture according to Claim 8 (1), wherein the shape of the respective surfaces of the shape of collimater skirtboard (40,40') and recess (30,30') comprises curved shape, and radius of curvature is positioned at preferably between 0.4mm and 4mm, more preferably between 0.5mm and 2mm and most preferably in the scope of 0.7mm and 1.5mm.
10. according to light fixture any in the claim 1 to 9 (1), the light entrance perforate (5) of its center dant (30) and collimater (4) comprises the substantial rectangular cross section, and collimater skirtboard (40) is configured as along an edge of light entrance perforate (5) and stretches out.
11. according to the light fixture (1) of claim 10, wherein the rotating shaft (R) of collimater (4) is parallel to the edge of light entrance perforate (5).
12. light fixture (1) according to claim 11, wherein actuator (8) comprises the bar (8) at the edge that is connected to the light entrance perforate (5) relative with skirtboard (40), and described bar (8) centers on rotating shaft (R) thereby is rotatable around rotating shaft (R) inclination collimater (4).
13. according to light fixture any in the claim 1 to 9 (1), wherein the circumference of the light entrance perforate (5') of collimater (4') and recess (30') comprises circular cross-section basically.
14. according to the light fixture (1) of claim 12, wherein actuator (8') is used for around rotating shaft (R') the rotation collimater (4') that is substantially perpendicular to support (3).
15. a car headlamp device (80), it comprises according to light fixture any in the claim 1 to 14 (1), and comprises support element (81) and secondary optics (82).
CN2009801537270A 2009-01-05 2009-12-22 Lighting assembly and automotive headlamp arrangement Active CN102272518B (en)

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EP09150045 2009-01-05
PCT/IB2009/055901 WO2010076741A1 (en) 2009-01-05 2009-12-22 Lighting assembly and automotive headlamp arrangement

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216777A (en) * 2012-01-24 2013-07-24 株式会社小糸制作所 Vehicle headlamp
TWI582336B (en) * 2015-08-26 2017-05-11 T Y C Brother Industrial Co Ltd Two-lens remote light switch lights

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2956720B1 (en) * 2010-02-19 2013-03-15 Valeo Vision OPTICAL SYSTEM OF A MOTOR VEHICLE
WO2011107908A1 (en) * 2010-03-03 2011-09-09 Koninklijke Philips Electronics N.V. Collimator
DE102010046571B3 (en) * 2010-09-27 2012-03-08 Volkswagen Ag Headlight for a motor vehicle and motor vehicle
ITTO20120988A1 (en) * 2012-11-14 2014-05-15 Light In Light S R L ARTIFICIAL LIGHTING SYSTEM TO SIMULATE A NATURAL LIGHTING
DE102014017978A1 (en) * 2014-12-04 2016-06-09 Audi Ag Lighting device for a motor vehicle, motor vehicle with a lighting device and method for operating a lighting device
KR20180048910A (en) * 2015-09-02 2018-05-10 루미리즈 홀딩 비.브이. LED modules and lighting modules
EP3670259B1 (en) * 2018-12-19 2021-09-22 ZKW Group GmbH Illumination device for vehicle headlamps
US10562440B1 (en) 2019-02-04 2020-02-18 Danial Julian Directional lighting system
EP3855067A1 (en) 2020-01-27 2021-07-28 Lumileds Holding B.V. Light module for a vehicle headlamp having led light source and vehicle head lamp
JP2022113003A (en) * 2021-01-22 2022-08-03 スタンレー電気株式会社 Vehicular lamp
DE102021112101A1 (en) 2021-05-10 2022-11-10 HELLA GmbH & Co. KGaA Lighting device for a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006033040A1 (en) * 2004-09-20 2006-03-30 Koninklijke Philips Electronics N.V. Led collimator element with a semiparabolic reflector
CN1993839A (en) * 2004-08-06 2007-07-04 皇家飞利浦电子股份有限公司 LED lamp system
CN101023296A (en) * 2004-09-20 2007-08-22 皇家飞利浦电子股份有限公司 LED collimator element with an asymmetrical collimator
CN101061413A (en) * 2004-11-18 2007-10-24 皇家飞利浦电子股份有限公司 Lighting system and front lamp of vehicle

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US959205A (en) * 1908-10-07 1910-05-24 Henry D Olier Jr Reflector attachment.
US1162646A (en) * 1915-06-03 1915-11-30 William K Porter Signal-apparatus.
US1505654A (en) * 1923-01-05 1924-08-19 Macbeth Norman Reading lamp
US1751011A (en) * 1928-08-09 1930-03-18 Jr Horace G Martin Electric lamp
FR2223229B1 (en) * 1973-04-02 1978-12-29 Alphen Jacques
FR2294905A2 (en) * 1974-12-19 1976-07-16 Alphen Jacques DEVICE FOR AUTOMATIC CORRECTION OF THE ORIENTATION OF THE LIGHT BEAM OF A MOTORCYCLE OR SIMILAR VEHICLE HEADLIGHT
US4298912A (en) * 1979-10-09 1981-11-03 Dearth Miles B Attachment for a vehicle dome light
JPH076564Y2 (en) 1990-04-19 1995-02-15 株式会社小糸製作所 Variable light distribution vehicle headlights
US5426571A (en) * 1993-03-11 1995-06-20 Jones; Jerry Motorcycle headlight aiming device
DE4418135B4 (en) 1994-05-25 2005-05-04 Automotive Lighting Reutlingen Gmbh Motor vehicle headlight with variable light distribution
DE10260397A1 (en) 2002-12-21 2004-07-22 Audi Ag Motor vehicle has light directing reflectors arranged around headlamp which can be adjusted to change the direction of the light beam
US7093959B2 (en) * 2004-08-12 2006-08-22 Frank Tsao Outdoor lamp with projection range adjustment
US7775679B2 (en) * 2004-08-18 2010-08-17 Advanced Illumination, Inc. High intensity light source for a machine vision system and method of making same
DE102005007347A1 (en) * 2005-02-17 2006-08-31 Zumtobel Staff Gmbh Luminaire with elongated light source and light influencing element
JP4714088B2 (en) * 2006-06-16 2011-06-29 株式会社小糸製作所 Vehicle headlamp
EP2066530B1 (en) 2006-09-21 2017-03-15 Koninklijke Philips N.V. A vehicle lamp, a method of adjusting a vehicle lamp, and a vehicle with a vehicle lamp
WO2008067515A1 (en) * 2006-11-30 2008-06-05 Cree Led Lighting Solutions, Inc. Light fixtures, lighting devices, and components for the same
US8061868B2 (en) * 2008-06-01 2011-11-22 Jack Dubord Adjustable LED lighting system, kit and method of using same
RU2562041C2 (en) * 2009-03-12 2015-09-10 Конинклейке Филипс Электроникс Н.В. Light-emitting device and lighting fitting
US8398271B2 (en) * 2010-01-05 2013-03-19 Pak Ming Daniel Chan Heat dissipating light reflecting device
WO2011107908A1 (en) * 2010-03-03 2011-09-09 Koninklijke Philips Electronics N.V. Collimator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1993839A (en) * 2004-08-06 2007-07-04 皇家飞利浦电子股份有限公司 LED lamp system
WO2006033040A1 (en) * 2004-09-20 2006-03-30 Koninklijke Philips Electronics N.V. Led collimator element with a semiparabolic reflector
CN101023296A (en) * 2004-09-20 2007-08-22 皇家飞利浦电子股份有限公司 LED collimator element with an asymmetrical collimator
CN101061413A (en) * 2004-11-18 2007-10-24 皇家飞利浦电子股份有限公司 Lighting system and front lamp of vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216777A (en) * 2012-01-24 2013-07-24 株式会社小糸制作所 Vehicle headlamp
CN103216777B (en) * 2012-01-24 2016-03-23 株式会社小糸制作所 Headlight for automobile
TWI582336B (en) * 2015-08-26 2017-05-11 T Y C Brother Industrial Co Ltd Two-lens remote light switch lights

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CN102272518B (en) 2013-06-19
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JP2012514831A (en) 2012-06-28
US8764259B2 (en) 2014-07-01
EP2384411B1 (en) 2012-10-17
US20120026746A1 (en) 2012-02-02
JP5490821B2 (en) 2014-05-14

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